Portmeirion Weather Forecast

    • 15
    • 18

    Heavy rain

    • 14
    • 18

    Thunder

    • 14
    • 18

    Cloudy

    • 14
    • 18

    Cloudy

    • 14
    • 18

    Light rain shower

    • 15
    • 19

    Cloudy

    • 15
    • 18

    Light rain

Today 29 Aug Wales

A cloudy and wet start with heavy spells of rain, clearing eastwards during the day. Turning brighter from the west during the afternoon with sunny spells and showers following. Maximum temperature 20 °C.

Tonight 29 Aug Wales

Further showers are likely during the evening but turning drier from the west with clear spells. Isolated showers are likely to persist for much of the night, across high ground. Minimum temperature 13 °C.

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Portmeirion Temperature Statistics

August Temperature

Capel Curig Saws (22km)

  • Lowest 23 August, 2026

    3.7 °C

  • Average August

    15.5 °C

  • Highest 12 August, 2026

    31.4 °C

Climate (2021–2026)

Capel Curig Saws (22km)

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  • Average Low 2021–2026

    7 °C

  • Average 2021–2026

    10 °C

  • Average High 2021–2026

    12.9 °C
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